Subtract 21/63 from 21/50
21/50 - 21/63 is 13/150.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 63 is 3150
Next, find the equivalent fraction of both fractional numbers with denominator 3150 - For the 1st fraction, since 50 × 63 = 3150,
21/50 = 21 × 63/50 × 63 = 1323/3150 - Likewise, for the 2nd fraction, since 63 × 50 = 3150,
21/63 = 21 × 50/63 × 50 = 1050/3150 - Subtract the two like fractions:
1323/3150 - 1050/3150 = 1323 - 1050/3150 = 273/3150 - After reducing the fraction, the answer is 13/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/50-21/63 21/50-42/63 63/50-21/63